Haptic stylus
First Claim
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1. A device comprising:
- a housing;
a tip configured to be movable with respect to the housing;
a resilient element fixed to the tip, wherein the resilient element includes magnetic material, wherein the magnetic material is formed from conductive material;
a plurality of substrates formed in a pyramid structure fixed to the housing, wherein a surface of each substrate is positioned to face the resilient element and wherein the resilient element is configured to press against at least one surface in response to the tip receding toward the housing;
a coil patterned on at least two substrates; and
a controller configured;
apply current flow in the coil to induce haptic feedback via the tip, wherein the current flow is configured to induce a magnetic driving force on the resilient element; and
detect capacitive coupling between the coil and the magnetic material of the resilient element based on applying a constant voltage across the coil, wherein the capacitive coupling is related pressure on the tip.
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Abstract
A device includes a housing, a tip configured to be movable with respect to the housing, a resilient element fixed to the tip, a substrate fixed to the housing, a coil mounted or patterned on the substrate, and a controller configured to induce haptic feedback via the tip based on applying a signal to the coil. A surface of the substrate faces the resilient element. The resilient element presses against the surface in response to the tip receding toward the housing. The resilient element includes magnetic material. The signal applied on the coil induces a magnetic driving force on the resilient element.
100 Citations
20 Claims
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1. A device comprising:
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a housing; a tip configured to be movable with respect to the housing; a resilient element fixed to the tip, wherein the resilient element includes magnetic material, wherein the magnetic material is formed from conductive material; a plurality of substrates formed in a pyramid structure fixed to the housing, wherein a surface of each substrate is positioned to face the resilient element and wherein the resilient element is configured to press against at least one surface in response to the tip receding toward the housing; a coil patterned on at least two substrates; and a controller configured; apply current flow in the coil to induce haptic feedback via the tip, wherein the current flow is configured to induce a magnetic driving force on the resilient element; and detect capacitive coupling between the coil and the magnetic material of the resilient element based on applying a constant voltage across the coil, wherein the capacitive coupling is related pressure on the tip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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fixing a resilient element to a tip that extends out of a housing and is movable with respect to the housing, wherein the resilient element includes magnetic material and wherein the magnetic material is conductive; positioning a plurality of substrates in a pyramid structure to face the resilient element and fixed to the housing; wherein the resilient element is configured to press against at least one surface in response to the tip receding toward the housing; wherein at least two substrates include a coil that is patterned on the substrate; inducing haptic feedback via the tip based on applying a current flow in the coil, wherein the current flow is configured to induce a magnetic driving force on the resilient element; and detecting capacitive coupling between the coil and the magnetic material of the resilient element based on applying a constant voltage across the coil, wherein the capacitive coupling is related pressure on the tip. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification